Calibration of tracking device
AssigneeHarman Becker Automotive Systems GmbH
InventorsWolfgang Hess, Tobias Munch, Hans-Jurgen Nitzpon
Life of this patent
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Abstract
A tracking device may be used to detect a position or movement of an object. The tracking device may include a housing that supports an emitter. The emitter may transmit a first signal. A measurement device within the housing may measure rotational movement of an object. Circuitry may receive a second signal in response to the first signal. The circuitry may reset an angle value to a predetermined value based on the second signal. The angle value may be determined by a measurement of the rotational movement of the object.
Claims25
A method for calibrating a tracking device, the method comprising:
- transmitting a first signal from a source corresponding to a tracking device;
- receiving a second signal as a function of a position of the tracking device;
- and
- resetting at least one angle value to a predetermined value as a function of the reception of the second signal,
- where the tracking device determines rotational movement of an object, and where the determination includes a rotational measurement used to determine the at least one angle value.
A tracking device comprising:
- a housing;
- an emitter supported by the housing, the emitter configured to transmit a first signal;
- a measurement device within the housing, the measurement device configured to measure rotational movement of an object;
- and
- circuitry in communication with the measurement device, the circuitry operative to receive a second signal in response to the first signal,
- where the circuitry is further operative to reset at least one angle value to a predetermined value as a function of the reception of the second signal, the at least one angle value determined by a measurement of the rotational movement of the object.
A tracking system with automatic calibration, the system comprising:
- a tracking device configured to measure rotational movement of an object, the tracking device further configured to transmit a first signal;
- and
- a receiving device separate from the tracking device, the receiving device operable to detect the first signal and provide a second signal to the tracking device in response to the first signal, and
- where detection of the first signal is based on a position of the tracking device, and where the tracking device is operative to reset at least one angle value to a predetermined value as a function of the reception of the second signal.
Dependencies are inferred from the claim text.